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關(guān)于NumPy中asarray的用法及說(shuō)明_python_腳本之家
也就是說(shuō)當(dāng)數(shù)據(jù)=是ndarray時(shí),a = array(b),a和b不再是占用同一個(gè)內(nèi)存的數(shù)組,而asarray中,a和b是同一個(gè),改變b即改變a。 2、asarray和asanyarray的區(qū)別,np.asanyarray 會(huì)返回 ndarray 或者ndarray的子類(lèi),而np.asarray 只返回 ndarray. 也就是說(shuō)對(duì)于ndarray的子類(lèi),asanyarra
www.dbjr.com.cn/article/2566...htm 2025-6-3
Python空間數(shù)據(jù)處理之GDAL讀寫(xiě)遙感圖像_python_腳本之家
im_proj=dataset.GetProjection()#地圖投影信息 im_data=dataset.ReadAsArray(0,0,im_width,im_height)#將數(shù)據(jù)寫(xiě)成數(shù)組,對(duì)應(yīng)柵格矩陣 deldataset returnim_proj,im_geotrans,im_data #寫(xiě)文件,以寫(xiě)成tif為例 defwrite_img(self,filename,im_proj,im_geotrans,im_data): #gdal數(shù)據(jù)類(lèi)型包括 #gdal.GDT_Byte, #...
www.dbjr.com.cn/article/1667...htm 2025-5-23
Python將大量遙感數(shù)據(jù)的值縮放指定倍數(shù)的方法(推薦)_python_腳本之家
首先,使用dataset.GetRasterBand()方法獲取當(dāng)前波段對(duì)象,然后使用band.ReadAsArray()將波段數(shù)據(jù)讀取為數(shù)組;根據(jù)波段索引的不同,對(duì)波段數(shù)據(jù)進(jìn)行處理。在本文中,對(duì)4個(gè)波段進(jìn)行的其實(shí)是相同的處理,即將大于1的像素值除以10000。 ??其次,使用output_dataset.GetRasterBand()方法獲取輸出數(shù)據(jù)集中的當(dāng)前波段對(duì)象,并使用o...
www.dbjr.com.cn/python/3348079...htm 2025-6-2
Python讀取TIF影像的多種方法_python_腳本之家
arr=dataset.ReadAsArray()#(3, 2960, 1976) arr=arr.transpose(1,2,0)#(2960, 1976, 3) print(arr.shape) 方法5:gdal方法2 1 2 3 4 5 6 7 8 9 10 11 12 13 dataset=gdal.Open(path) bands=dataset.RasterCount forbandinrange(1, bands+1): ...
www.dbjr.com.cn/python/2935895...htm 2025-6-7
Redis報(bào)錯(cuò)UnrecognizedPropertyException: Unrecognized field問(wèn)...
at com.fasterxml.jackson.databind.jsontype.impl.AsArrayTypeDeserializer.deserializeTypedFromAny(AsArrayTypeDeserializer.java:71) at com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer$Vanilla.deserializeWithType(UntypedObjectDeserializer.java:712) ...
www.dbjr.com.cn/database/329576p...htm 2025-5-14
Python實(shí)現(xiàn)批量讀取HDF多波段柵格數(shù)據(jù)并繪制像元直方圖_python_腳本...
lai_raster_array=lai_raster.ReadAsArray() non_veg_type_lai_array=np.where(mcd_raster_array==veg_type+1,lai_raster_array,np.nan) plt.hist(non_veg_type_lai_array) plt.savefig(pic_save_path+"DRT_"+str(veg_type+1)+".png", dpi=300) ...
www.dbjr.com.cn/article/2768...htm 2025-6-9
python實(shí)現(xiàn)3D地圖可視化_python_腳本之家
elevationb=bandb.ReadAsArray() importmatplotlib.pyplot as plt nrows, ncols=elevationr.shape elevation=cv2.merge([elevationg,elevationr,elevationb])# # I'm making the assumption that the image isn't rotated/skewed/etc. # This is not the correct method in general, but let's ignore that ...
www.dbjr.com.cn/article/1834...htm 2025-5-28
python+gdal+遙感圖像拼接(mosaic)的實(shí)例_python_腳本之家
band_array=band.ReadAsArray(0,0,lie,hang)# Getting data from zeroth rows and 0 columns # band_df = pd.DataFrame(band_array) delimage# 減少冗余 returnband_array, im_proj, im_geotrans 2寫(xiě) 2.1 TIFF格式 TIFF格式的數(shù)據(jù)格式有:Byete、int16、uint16、int32、uint32、float32、float64等7余種...
www.dbjr.com.cn/article/1823...htm 2025-6-9